| European Countries by First 2 Letters | 0 | - | 4.95 | 530,021 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 214,026 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,229 |
| Official European Union Languages | 0 | - | 4.97 | 238,692 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,975 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,558 |
| Slavic Languages | 0 | - | 4.68 | 54,410 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,033 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,868 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| Celtic Nations | 0 | - | 4.69 | 46,967 |
| History of Russia Quiz | 0 | - | 4.47 | 31,939 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,756 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,447 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,844 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,325 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,403 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,297 |
| Slavic Countries | 0 | - | 4.96 | 111,765 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,394 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,111 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,007 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,240 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,528 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,734 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,125 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,622 |
| Geography of Russia | 0 | - | 4.57 | 21,547 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,971 |
| States of Germany | 0 | - | 4.95 | 152,865 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,157 |
| Regions of Italy | 0 | - | 4.92 | 76,055 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,288 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,135 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,291 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,721 |
| Champions League Winners | 0 | - | 4.92 | 1,008,191 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,621 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,776 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,262 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,572 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,106 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,333 |
| Departments of France | 0 | - | 4.93 | 54,265 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,635 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,565 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,492 |
| England or Wales? | 0 | - | 4.94 | 45,746 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,679 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,400 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,546 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,809 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,399 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,195 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,125 |
| Name that Greek Letter | 0 | - | 4.93 | 323,972 |
| History of Italy | 0 | - | 4.55 | 32,017 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,853 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,691 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,267 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,727 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,504 |
| Word Chain - Russia | 0 | - | 4.33 | 15,766 |
| Capitals of French Regions | 0 | - | 4.45 | 16,090 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,276 |
| Capitals of German States | 0 | - | 4.74 | 28,974 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,363 |
| The Trojan War | 0 | - | 4.83 | 39,766 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,004 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,591 |
| Roman Emperors | 0 | - | 4.95 | 120,206 |
| Africa Map Quiz | 0 | - | 5.00 | 2,119,785 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,089 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,454 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,818 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,146 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,779 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,639 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,837 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,655 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,956 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,805 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,097 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,550 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,313 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,979 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,265 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,264 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,693 |
| Regions of France | 0 | - | 4.72 | 120,977 |
| France Immigration by Country | 0 | - | 4.70 | 76,591 |
| Famous Germans | 0 | - | 4.50 | 55,348 |
| German Groups of Things | 0 | - | 4.46 | 38,494 |
| Germany True or False? | 0 | - | 4.61 | 48,843 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,068 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,344 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,558 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,437 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,289 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,328 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,907 |
| Asia Map Quiz | 0 | - | 4.99 | 917,932 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,953 |
| African East Coast | 0 | - | 4.96 | 96,149 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,019 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,809 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,515 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,695 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,268 |
| European Physical Geography | 0 | - | 4.26 | 33,524 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,441 |
| Country Codes of Europe | 0 | - | 3.43 | 13,738 |
| The Only European Country ... | 0 | - | 4.91 | 216,999 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,346 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,225 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,988 |
| History of Austria | 0 | - | 4.70 | 17,878 |
| Presidents of France | 0 | - | 4.25 | 24,172 |
| Geography of the French Empire | 0 | - | 4.45 | 27,122 |
| The French Revolution | 0 | - | 4.47 | 24,025 |
| France Multiple Choice | 0 | - | 4.39 | 40,752 |
| History of France | 0 | - | 4.59 | 57,134 |
| Ancient Greek Words | 0 | - | 4.93 | 111,754 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,205 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,170 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,056 |
| American to British Word Translation | 0 | - | 4.14 | 139,187 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,923 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,085 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,684 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,530 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,879 |
| Champions League Top 4 | 0 | - | 4.77 | 136,862 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,098 |
| Countries of Africa | 0 | - | 5.00 | 2,540,778 |
| Australia Map Quiz | 0 | - | 4.95 | 344,840 |
| United States Map Quiz | 0 | - | 4.98 | 4,161,279 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,719 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,878 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,037 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,149 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,831 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,634 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,272 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,819 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,993 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,713 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,269 |
| European Geography A-Z | 0 | - | 4.29 | 49,311 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,319 |
| Austria... or Australia? | 0 | - | 4.68 | 104,427 |
| Famous French People | 0 | - | 4.07 | 35,673 |
| Word Chain - France | 0 | - | 4.38 | 42,798 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,034 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,934 |
| Italian Foods | 0 | - | 4.30 | 72,840 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,369 |
| The Mafia Quiz | 0 | - | 4.46 | 23,345 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,525 |
| History of The Netherlands | 0 | - | 4.46 | 17,449 |
| Canary Islands | 0 | - | 4.62 | 17,486 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,767 |
| British Spellings | 0 | - | 4.06 | 99,472 |
| British Groups of Things | 0 | - | 4.25 | 82,888 |
| British Acronyms | 0 | - | 4.40 | 45,819 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,046 |
| British Monopoly Board | 0 | - | 4.52 | 41,182 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,879 |
| Geography of Scotland | 0 | - | 4.63 | 21,634 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,899 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,021 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,190 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,156 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,678 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,345 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,346 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,668 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,215 |
| African Island Countries | 0 | - | 4.96 | 101,726 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,586 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,358 |
| Australian States and Territories | 0 | - | 4.96 | 142,112 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,326 |
| Australia True or False | 0 | - | 4.87 | 56,904 |
| Flags of North and South America | 0 | - | 4.99 | 373,673 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,666 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,301 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,933 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,708 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,455 |
| North America Map Quiz | 0 | - | 4.98 | 248,914 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,769 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,085 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,954 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,232 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,919 |
